In the feudal era, land was the foundation, land represented strength, in fact, it was the output of land, which fed enough population to produce enough power, which was the simplest use of political economy, just the output of land.

In the feudal era, an acre of land was at most four or five stones, so it was easy to determine the overall output.

Grain output is the most difficult to increase, and in later generations, Yuan Longping, who is known as the father of grain, is only to increase the yield per mu to the extent of one ton, that is, 2,000 catties, that is, compared with the feudal era, the highest yield per mu has increased by 4 times.

The biggest role of grain is to provide the most basic means of subsistence, without food, it is impossible to feed enough people, but if there is more grain, the value generated is relatively limited, and the primary industry such as farming can never develop on a large scale like industry.

There is no stability without agriculture, no work without wealth, and no business without life, this sentence speaks of the relationship between the primary, secondary, and tertiary industries.

The development of the navy is dominated by industry, and the added value of industrial development is higher than that of agriculture.

An ordinary iron ore, from ore with steel, to steel, and then to the final output of various products, if he is positioned in iron ore, the cost in the Northern Song Dynasty is limited to the cost of mining, and a load may only be a few pennies.

However, from iron ore to iron, the cost of the Northern Song Dynasty was 80 Wen in the past, and when it came to the Daimyo's Mansion and then to the Ding Navy, it was reduced to about a dozen Wen, and the cost of the Ding Navy could be compressed to less than 4 Wen.

According to the content of ordinary iron ore, between 30% and 40, China rarely has an iron content of about 5 percent, or even about 7 percent of iron ore, most of which are three or four percent, but pure iron is calculated, according to the price of iron ore, maybe 10 catties is just a penny, so calculated, the cost may have skyrocketed thirty or forty times.

From iron ore to iron, it is a great increase in the value of an item, but from iron to iron, it is even more different, even if it is the cost of the navy, a steel knife weighing about a pound, the price will be about 50 Wen, which is also ten times higher than steel.

Ten times ten times, from ordinary iron ore to the final item, the increase rate in the middle is very terrible, the role of industrialization is to reduce the intermediate links as much as possible, reduce the cost of the intermediate links, and the rest are profits.

An industry, simple mining, digging iron ore from the ground, and making a simple selection, if this volume is 1, after ironmaking, it is 30, and when it comes to generating industrial products, it is 300, if it is not a steel knife with low added value, but Dinghai coins, the price is higher, and it will be tenfold, and some other products, for example, the armor-piercing bow used in the longbow, some iron-based components, machines and the like.

With the development of science and technology and industry, the products produced have increased their added value on the original basis, and the more developed science and technology, the higher the added value.

For example, in the 21st century, microelectronics developed based on computers, the raw material is just the most sand and gravel in nature, and the higher the purity, the higher the precision of cutting and carving, and the added value of trillions of times in the original production cost, which is infinite.

With Zhao Xin's ability, the time of development, and the foundation of science and technology, he was able to enter the current level, barely made more excellent materials, and based on materials, produced a series of products, compared with raw materials, the highest has obtained a thousand times the added value, on the basis of a thousand times, which is improved in the middle, are profits.

This is the terrible thing about industry, it has infinite possibilities, and it will not be bound by the land on its own initiative.

Just like the current Dinghai Navy, in the eyes of outsiders, only such a palm-sized land, I am afraid that the larger counties will exceed the Dinghai Navy, maybe the industry and commerce are developed, what does it matter, can surpass the wealth of Jiangnan, even if it is rich like Jiangnan, what can it be.

From the viewpoint of feudal society, it is doomed to make mistakes in looking at the fixed navy based on the era of industrialized mass production, and the difference is not only a thousand times greater.

With the top Jiangnan standard, the Dinghai Navy has such a territory, and the most output, that is, about one million guan per year, maybe it will be a little richer after doing business, and it will not be much higher, but in fact, the Dingjun Navy has exceeded 10 million guan as early as the time of the Daimyo's mansion, and now, it has almost reached the height of 100 million guan.

This is the terrible nature of industry, with a little bit of land in the Dinghai Navy, it has created an output value that the entire Northern Song Dynasty has not created, and the income is even greater, but one of the most fundamental problems of industrialization lies in the market.

If it is said that the place where Zhao Xin crossed was not a place like the Northern Song Dynasty, but the Liao State or the Western Xia, even if he did it desperately, what could he do, when the product was enough, and under the premise of exceeding the demand, there would be an economic crisis, and the merchants, in order to ensure that a certain product was sufficiently profitable, even did not hesitate to dump or even destroy the goods, and would not let him flow into the market, when a market was saturated, no matter how much interest was there, what was the use.

The Great Song Dynasty itself has a population of hundreds of millions, which is a huge market, and the spontaneous economic circle produced by the development of the Northern Song Dynasty for many years has become the source of the profits of the Dinghai Navy, which will become the growth point of the gradual development of the Dinghai Navy in a short period of time.

However, this does not mean that it is enough to simply have a fixed navy, although the territory is not very important for the industrial society, after the opening of the industrial revolution, whether it is the original Portugal, the Netherlands, or even the United Kingdom, which sits on the seven seas, their land is not very large, but relatively speaking, the market is very critical.

The location of the Dinghai Navy is very wonderful, backed by the Great Song Dynasty, it can be said that it has the largest market on the whole earth in the 11th century, but outside the rules, outside the perspective of the Northern Song Dynasty, having a large enough land is also very important for the Dinghai Navy.

From Zhao Xin's withdrawal from his identity, from the identity of the second prince, to the heir of the Miao family, in order to jump out of the whirlpool of dynastic contention.

Obviously there is a chance to use more economical power to climb to the peak of power, why take the most difficult road, which also restricts Zhao Xin from the side, at present, Zhao Xin is in the position, it is impossible to reach out to the mainland, he has a stable environment, the time for free development, is because he took a step back, if he stretches out his hand again, it is very likely that it will cause the hatred of those successors, and really make small moves behind the scenes, which is not conducive to development.

A stable Great Song Dynasty is suitable for the development of Zhao Xin, at a time when the vast majority of wise people do not understand the explosive development of the naval industry, as long as the navy is given a few years, the navy will develop to a terrible degree.

Just look at the present, less than a year ago, the Dinghai Navy has concentrated a population of 1.5 million people, these people, not as low as farming, but real workers, the secondary industry compared with the primary industry, naturally has several times the production capacity, especially today when the Dinghai Navy has mastered the core science and technology.

When a team of several people can produce thousands of farm tools a day, and a stable team can complete the production of 100,000 or even 200,000 long arrow clusters, the labor cost has been diluted to a very low level by industrial production.

This security accident proves from the side that land is still very necessary, even if the navy can be developed to the extent of Shanghai in the future, it can only accommodate more than 30 million people, which is still a little short of a huge empire that controls everything.

In this era, it is almost impossible to develop to the extent of Shanghai in later generations, Zhao Xin once calculated, about to reach one-fifth of the damage, that is, 8 million, is the limit of what the navy can make, and this is still under the condition of not accommodating more industry.

With the development of industry, especially the rapid development of heavy industry, marine industry, and chemical industry, sufficient land has become the key to the development of the navy.

Because of his own constraints, it is impossible for Zhao Xin to start with the mainland, so it has become an inevitable path to develop on the surrounding ocean.

In this era, the Bohai Sea and the Yellow Sea are larger than those of later generations, because of the accumulation of sediment brought by the Yellow River, and there is no reclamation of the sea, and the entire Bohai Bay has not yet been completely formed.

But even so, the topography of the Bohai Sea and the Yellow Sea also makes the offshore here lack islands, and I am afraid that the closest to here are the Ryukyu Islands and Jeju Island, which are really too far away for Zhao Xin now.

In the Yellow Sea and the East China Sea, the islands are sparse, even if there are uninhabited islands, such as Chongming Island at the mouth of the Yangtze River, but they are relatively small, and the best is actually Taiwan, the largest island off the coast of China, and the location is quite suitable.

Under the current situation, the sea is the only direction that can be developed, but it is a pity that for the Northern Song Dynasty, it is still very difficult to develop.

The horror of the sea, only those who really understand it will be recognized, Zhao Xin's development is a scientific and controllable road, not like Europe, just mobilizing a steady stream of people to explore.

The reason why Europe was able to control the whole world originated from the Age of Discovery, and what people later saw was the Age of Discovery, countless navigators, accumulated achievements, Columbus, Magellan, da Gama, these names of navigators named after countless straits, are just some lucky ones.

In the early days of the Age of Sail, because of the vastness of the sea and the underdevelopment of science and technology, in the first Age of Sail, ships that went to sea did not even have the ability to sail in the ocean, had no speed, had no way to solve septicaemia, did not have a qualified means of ranging, and did not even have a ship that could resist the most basic storms.

It is with gambling and crazy benchmarking, countless navigators, one after another, to search, this is a channel cast with life, countless nameless navigators, and finally died at the bottom of the sea, they almost used the white bones, paved a road to the ocean.

If Zhao Xin was not a traverser and knew nothing about the sea, perhaps, for the sake of China's navigation road, he would have to use the same method, and countless later generations have proved that only by going to the sea and occupying the sea is the direction of development.

However, the smelting industry gave Zhao Xin the foundation, the card system could give Zhao Xin enough high-quality steel, coupled with the understanding of sail warships and mechanical power, the Northern Song Dynasty actually had a solid weapon to go to the sea.

Based on the power system and seaworthiness of the sail battleship, with steel as the keel, with China's watertight cabin technology, and some advanced things, these are mixed together, and a sail battleship that is not much worse than the sail battleship and the Spanish battleship will appear in the Northern Song Dynasty.

On the premise of having a better ship, why use a windsurfing board, even if Zhao Xin becomes a superior person, he can look at these workers below a little ruthlessly, and it is impossible to send these people into the ocean knowing that they will die.

Even in the 21st century, with satellites flying into the sky, excellent radio technology and computer-controlled ranging systems, there are still ships that are silent every year, and sometimes, the proximity is irretrievable, let alone the premise that there is no radio, no accurate ranging, and even ships cannot withstand large-scale sea conditions.

Zhao Xin is in the early stage of development, every talent is extraordinarily precious, the previous steelmaking plant, lost almost 400 workers, the only thing he is fortunate about is that the engineer level of the entire steelmaking plant, only 2, is on-site monitoring, died at the scene, including Niu Dali's top those, are in the laboratory There is no problem, in case Niu Dali has a little thing, it will be miserable, at least, the development of the steel mill will be delayed for several years.

To this end, Zhao Xin specially formulated a rule that all researchers, unless necessary, are not allowed to enter the steelmaking plant, which is also to protect them to the greatest extent.

Compared with steelmaking, shipbuilding has more technical content, and the century-old navy is not just a talk, even in later generations, the navy and shipbuilding industry are also the place where the most high-end forces of the whole country and the entire army are condensed.

The shipbuilding industry is even more so, Zhao Xin has begun to locate the navy, and the ocean he is looking at, the strategy of facing the ocean in the future cannot be changed, but the development of the shipbuilding industry is still very slow, even with the support of the navy, and the terrible money has been invested.